Phylogenetic relationships, infrageneric classification and species limits in the Neotropical genusFaramea(Coussareeae: Rubiaceae)
Open Access
- 14 June 2021
- journal article
- research article
- Published by Oxford University Press (OUP) in Botanical Journal of the Linnean Society
- Vol. 197 (4), 478-497
- https://doi.org/10.1093/botlinnean/boab034
Abstract
Faramea is characterized by white or blue, tetramerous corollas and blue-black, fleshy fruits with a single, large pyrene. Both infrageneric relationships and species boundaries are poorly understood in the genus. This study represents the first broad-scale phylogenetic study of Faramea, with 80 of the c. 170 species sampled, 24 by two or more specimens. We aimed to include specimens representing the entire geographical, morphological and ecological ranges of the genus. Morphological characters historically utilized to delimit infrageneric sections in Faramea (e.g. bract and pyrene forms) were also evaluated. Only one of the currently accepted infrageneric sections was recovered as monophyletic (within a complex of species from other sections) and none of the morphological features traditionally utilized to determine infrageneric relationships in the genus was found to be uniquely diagnostic of a larger clade. Some Faramea lineages appear to be geographically isolated, with several clades containing solely specimens collected in the Atlantic Forest biomes. Of the 24 species represented by at least two specimens, 11 were supported as monophyletic, ten as non-monophyletic and three were not resolved as either monophyletic nor non-monophyletic. The results of the present study constitute a good basis for future studies of taxonomy, biogeography and ecology of Faramea.Keywords
Funding Information
- Swedish Research Council (2017-03985)
This publication has 51 references indexed in Scilit:
- MAFFT Multiple Sequence Alignment Software Version 7: Improvements in Performance and UsabilityMolecular Biology and Evolution, 2013
- Geneious Basic: An integrated and extendable desktop software platform for the organization and analysis of sequence dataBioinformatics, 2012
- MrBayes 3.2: Efficient Bayesian Phylogenetic Inference and Model Choice Across a Large Model SpaceSystematic Biology, 2012
- BEAGLE: An Application Programming Interface and High-Performance Computing Library for Statistical PhylogeneticsSystematic Biology, 2011
- Rare and enigmatic genera (Dunnia, Schizocolea, Colletoecema), sisters to species-rich clades: Phylogeny and aspects of conservation biology in the coffee familyMolecular Phylogenetics and Evolution, 2008
- Rubiacearum Americanarum Magna Hama Pars XX. New Species of Faramea (Coussareae) from Central and South AmericaNovon: A Journal for Botanical Nomenclature, 2008
- Two New Species of Faramea (Rubiaceae, Coussareeae) from Eastern BrazilNovon: A Journal for Botanical Nomenclature, 2008
- The systematics of Knoxieae (Rubiaceae)—molecular data and their taxonomic consequencesTaxon, 2007
- Phylogenetic Utility of the External Transcribed Spacer (ETS) of 18S–26S rDNA: Congruence of ETS and ITS Trees ofCalycadenia(Compositae)Molecular Phylogenetics and Evolution, 1998
- Chloroplastrps16 intron phylogeny of the tribeSileneae (Caryophyllaceae)Österreichische botanische Zeitschrift, 1997